I too have slight low speed wobble on my sidecar set up I use a steering stabilizer cylinder and all's good may try that $35 and up on flea bay may more on internet
mike
I have two that i used on the old forks and a VW steering stabilizer that is new on shelf. My thinking if i have to add a stabilizer i might want to pursue the hyd steering assist setup that ive been pondering around in my old dementia infested mind.lol